I found this origin from Wyvrenn, and thought it was cool, but I made a couple changes to my liking and to balance it.

+ you can use your primary ability to instantly teleport where you are looking with a range of 50 blocks
+ you are used to the darkness in the end, giving you night vision (passive)
+ you have longer reach (passive)
+ you can use your secondary key to launch a fireball, like the ones in the end fight
+ endermen never get mad at you, because you are one of them
- you take damage and get slowness and weakness while in water/rain (passive)
- while in a 15 block radius of a pumpkin, you get slowness and weakness (passive)
- due to being trapped in the end, you are claustrophobic (like the elytrian)

again, thank you to Wyvrenn for the original origin. Go check that one out!

------------------------------------------------------USE THE ORIGIN MOD FOR THIS TO WORK------------------------------------------------------
-----------------------------------------------The "friendly eyes" ability only works with origins ++-----------------------------------------------
This is the original datapack I was inspired by: https://www.planetminecraft.com/data-pack/minecraft-origins-addon-enderian-evolved/